AnnotationWriter.java [plain text]
package com.sleepycat.asm;
final class AnnotationWriter implements AnnotationVisitor {
private final ClassWriter cw;
private int size;
private final boolean named;
private final ByteVector bv;
private final ByteVector parent;
private final int offset;
AnnotationWriter next;
AnnotationWriter prev;
AnnotationWriter(
final ClassWriter cw,
final boolean named,
final ByteVector bv,
final ByteVector parent,
final int offset)
{
this.cw = cw;
this.named = named;
this.bv = bv;
this.parent = parent;
this.offset = offset;
}
public void visit(final String name, final Object value) {
++size;
if (named) {
bv.putShort(cw.newUTF8(name));
}
if (value instanceof String) {
bv.put12('s', cw.newUTF8((String) value));
} else if (value instanceof Byte) {
bv.put12('B', cw.newInteger(((Byte) value).byteValue()).index);
} else if (value instanceof Boolean) {
int v = ((Boolean) value).booleanValue() ? 1 : 0;
bv.put12('Z', cw.newInteger(v).index);
} else if (value instanceof Character) {
bv.put12('C', cw.newInteger(((Character) value).charValue()).index);
} else if (value instanceof Short) {
bv.put12('S', cw.newInteger(((Short) value).shortValue()).index);
} else if (value instanceof Type) {
bv.put12('c', cw.newUTF8(((Type) value).getDescriptor()));
} else if (value instanceof byte[]) {
byte[] v = (byte[]) value;
bv.put12('[', v.length);
for (int i = 0; i < v.length; i++) {
bv.put12('B', cw.newInteger(v[i]).index);
}
} else if (value instanceof boolean[]) {
boolean[] v = (boolean[]) value;
bv.put12('[', v.length);
for (int i = 0; i < v.length; i++) {
bv.put12('Z', cw.newInteger(v[i] ? 1 : 0).index);
}
} else if (value instanceof short[]) {
short[] v = (short[]) value;
bv.put12('[', v.length);
for (int i = 0; i < v.length; i++) {
bv.put12('S', cw.newInteger(v[i]).index);
}
} else if (value instanceof char[]) {
char[] v = (char[]) value;
bv.put12('[', v.length);
for (int i = 0; i < v.length; i++) {
bv.put12('C', cw.newInteger(v[i]).index);
}
} else if (value instanceof int[]) {
int[] v = (int[]) value;
bv.put12('[', v.length);
for (int i = 0; i < v.length; i++) {
bv.put12('I', cw.newInteger(v[i]).index);
}
} else if (value instanceof long[]) {
long[] v = (long[]) value;
bv.put12('[', v.length);
for (int i = 0; i < v.length; i++) {
bv.put12('J', cw.newLong(v[i]).index);
}
} else if (value instanceof float[]) {
float[] v = (float[]) value;
bv.put12('[', v.length);
for (int i = 0; i < v.length; i++) {
bv.put12('F', cw.newFloat(v[i]).index);
}
} else if (value instanceof double[]) {
double[] v = (double[]) value;
bv.put12('[', v.length);
for (int i = 0; i < v.length; i++) {
bv.put12('D', cw.newDouble(v[i]).index);
}
} else {
Item i = cw.newConstItem(value);
bv.put12(".s.IFJDCS".charAt(i.type), i.index);
}
}
public void visitEnum(
final String name,
final String desc,
final String value)
{
++size;
if (named) {
bv.putShort(cw.newUTF8(name));
}
bv.put12('e', cw.newUTF8(desc)).putShort(cw.newUTF8(value));
}
public AnnotationVisitor visitAnnotation(
final String name,
final String desc)
{
++size;
if (named) {
bv.putShort(cw.newUTF8(name));
}
bv.put12('@', cw.newUTF8(desc)).putShort(0);
return new AnnotationWriter(cw, true, bv, bv, bv.length - 2);
}
public AnnotationVisitor visitArray(final String name) {
++size;
if (named) {
bv.putShort(cw.newUTF8(name));
}
bv.put12('[', 0);
return new AnnotationWriter(cw, false, bv, bv, bv.length - 2);
}
public void visitEnd() {
if (parent != null) {
byte[] data = parent.data;
data[offset] = (byte) (size >>> 8);
data[offset + 1] = (byte) size;
}
}
int getSize() {
int size = 0;
AnnotationWriter aw = this;
while (aw != null) {
size += aw.bv.length;
aw = aw.next;
}
return size;
}
void put(final ByteVector out) {
int n = 0;
int size = 2;
AnnotationWriter aw = this;
AnnotationWriter last = null;
while (aw != null) {
++n;
size += aw.bv.length;
aw.visitEnd(); aw.prev = last;
last = aw;
aw = aw.next;
}
out.putInt(size);
out.putShort(n);
aw = last;
while (aw != null) {
out.putByteArray(aw.bv.data, 0, aw.bv.length);
aw = aw.prev;
}
}
static void put(final AnnotationWriter[] panns, final ByteVector out) {
int size = 1 + 2 * panns.length;
for (int i = 0; i < panns.length; ++i) {
size += panns[i] == null ? 0 : panns[i].getSize();
}
out.putInt(size).putByte(panns.length);
for (int i = 0; i < panns.length; ++i) {
AnnotationWriter aw = panns[i];
AnnotationWriter last = null;
int n = 0;
while (aw != null) {
++n;
aw.visitEnd(); aw.prev = last;
last = aw;
aw = aw.next;
}
out.putShort(n);
aw = last;
while (aw != null) {
out.putByteArray(aw.bv.data, 0, aw.bv.length);
aw = aw.prev;
}
}
}
}